Resources requirements and trimming features

Good day friends.
I am newb and don't know much about linux.
I have a few busy sites hosted on cpanel hosting .This year I decided to go with bigger VPS . They don't offer a panel so I was wondering if this would be a good alternative to host my domains.
What I need is a simple way GUI to add domains,use phpMyadmin, set up emails,set up cron jobs and prevent hotlinking.
I have a virtual server with ubuntu 10.04 which has 1.5 gb ram and two core 1.7 ghz processor. Will this panel use alot of resources?
Is manual that's offered for 5 euro explains in details how to install it through terminal?
Can this panel be trimmed to preserve resources? because all I need is ability to add domains and above mentioned tasks.

Are you referring to ISPConfig 3? Yes, I think it's a good choice, and it doesn't need lots of resources. For installation instructions please refer to one of the "Perfect Server" guides that are linked here: http://www.ispconfig.org/ispconfig-3/documentation/